<?php
require_once __DIR__ . '/../helpers.php';
runAuth();

global $businessId;

$data = readJsonBody();
$bizId = $businessId;
if ($bizId <= 0) $bizId = (int) ($data['BusinessID'] ?? 0);
if ($bizId <= 0) {
    apiAbort(['OK' => false, 'ERROR' => 'no_business_selected']);
}

$beaconId = (int) ($data['BeaconID'] ?? 0);
if ($beaconId <= 0) {
    apiAbort(['OK' => false, 'ERROR' => 'missing_beacon_id', 'MESSAGE' => 'BeaconID is required']);
}

$q = queryOne("
    SELECT ID, BusinessID, ServicePointID FROM BeaconHardware
    WHERE ID = ? AND BusinessID = ?
    LIMIT 1
", [$beaconId, $bizId]);

if (!$q) {
    apiAbort(['OK' => false, 'ERROR' => 'not_found', 'MESSAGE' => 'Beacon not found or does not belong to this business']);
}

$servicePointId = (int) ($q['ServicePointID'] ?? 0);

// Clear the minor from the service point so it can be re-provisioned
if ($servicePointId > 0) {
    queryTimed("UPDATE ServicePoints SET BeaconMinor = NULL WHERE ID = ? AND BusinessID = ?", [$servicePointId, $bizId]);
}

// Mark hardware as unassigned
queryTimed("
    UPDATE BeaconHardware
    SET Status = 'unassigned', BusinessID = NULL, ServicePointID = NULL,
        ShardUUID = NULL, Major = NULL, Minor = NULL, UpdatedAt = NOW()
    WHERE ID = ?
", [$beaconId]);

jsonResponse(['OK' => true, 'ERROR' => '', 'BeaconID' => $beaconId]);